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J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris ...

Picryl description: Public domain image of wildlife, wild animals, nature, free to use, no copyright restrictions.

Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rockland, La Crosse County, WI

Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rock...

Significance: The Little Kaukauna Lock and Dam Complex allows passage for watercraft around the rapids present in the Lower Fox River at Little Kaukauna. Survey number: HAER WI-89 Building/structure dates: 18... More

Whitman Estate, Lower Pond Spillway, Approx. .5 mile south of intersection of DE72 & Ebeneezer Church Road, Newark, New Castle County, DE

Whitman Estate, Lower Pond Spillway, Approx. .5 mile south of intersec...

Significance: The Lower Pond Spillway is a contributing element to the Whiteman Estate, a good example of the combination of Colonial and Colonial Revival styles which incorporates mid-twentieth-century landsca... More

Whitman Estate, Lower Pond Spillway, Approx. .5 mile south of intersection of DE72 & Ebeneezer Church Road, Newark, New Castle County, DE

Whitman Estate, Lower Pond Spillway, Approx. .5 mile south of intersec...

Significance: The Lower Pond Spillway is a contributing element to the Whiteman Estate, a good example of the combination of Colonial and Colonial Revival styles which incorporates mid-twentieth-century landsca... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

Croton Hydroelectric Plant, Spillway, Croton Dam Road at Muskegon River, Croton, Newaygo County, MI

Croton Hydroelectric Plant, Spillway, Croton Dam Road at Muskegon Rive...

Significance: The Croton Hydroelectric Plant spillway was a key design feature of this electrical generation complex, an important example of the work of William G. Fargo, a Jackson, Michigan civil engineer who... More

J. Clark Salyer National Wildlife Refuge, Dam 341, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge, Dam 341, Along Lower Souris ...

Significance: The dams within the J. Clark Salyer National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...

Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...

Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...

Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie Co...

Significance: The Kaukauna Locks and Dam Complex provides passage around drop in elevation of 50 feet in the Lower Fox River at Kaukauna. The complex served as an integral part of the Lower Fox River Waterway ... More

Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skokomish River, 5 miles West of Hood Canal, Hoodsport, Mason County, WA

Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skoko...

Significance: The Cushman No. 1 Hydroelectric Power Plant is a significant example of medium head hydroelectric technology in the west from the 1920s. Located in steep, inaccessible terrain prone to flooding, ... More

Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skokomish River, 5 miles West of Hood Canal, Hoodsport, Mason County, WA

Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skoko...

Significance: The Cushman No. 1 Hydroelectric Power Plant is a significant example of medium head hydroelectric technology in the west from the 1920s. Located in steep, inaccessible terrain prone to flooding, ... More

Long Lake Hydroelectric Plant, Spillway Dam, Spanning Spokane River, Ford, Stevens County, WA

Long Lake Hydroelectric Plant, Spillway Dam, Spanning Spokane River, F...

Significance: The Long Lake hydroelectric facility is significant as one of the earliest and, for many years, largest hydroelectric generating facilities in The Washington Water Power Company's electrical power... More

Long Lake Hydroelectric Plant, Spillway Dam, Spanning Spokane River, Ford, Stevens County, WA

Long Lake Hydroelectric Plant, Spillway Dam, Spanning Spokane River, F...

Significance: The Long Lake hydroelectric facility is significant as one of the earliest and, for many years, largest hydroelectric generating facilities in The Washington Water Power Company's electrical power... More

Wickiup Dam, Dikes and Spillway, Deschutes River, La Pine, Deschutes County, OR

Wickiup Dam, Dikes and Spillway, Deschutes River, La Pine, Deschutes C...

Survey number: HAER OR-112-B Public domain photograph - historical image of Oregon, United States, free to use, no copyright restrictions image - Picryl description

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau, Trempealeau County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...

Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau, Trempealeau County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...

Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau, Trempealeau County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...

Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More

Upper Souris National Wildlife Refuge, Dam 83, Souris River Basin, Foxholm, Ward County, ND

Upper Souris National Wildlife Refuge, Dam 83, Souris River Basin, Fox...

Significance: The dams within the Upper Souris National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and co... More

Upper Souris National Wildlife Refuge, Dam 83, Souris River Basin, Foxholm, Ward County, ND

Upper Souris National Wildlife Refuge, Dam 83, Souris River Basin, Fox...

Significance: The dams within the Upper Souris National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and co... More

Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Foxholm, Ward County, ND

Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Fox...

Significance: The dams within the Upper Souris National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and co... More

Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Foxholm, Ward County, ND

Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Fox...

Significance: The dams within the Upper Souris National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and co... More

Thirty-first Street Overflow Structure, Thirty-first Street, Denver, Denver County, CO

Thirty-first Street Overflow Structure, Thirty-first Street, Denver, D...

Significance: This overflow structure comprised an important part of the sanitary engineering system built in Denver during the last part of the 19th century. Survey number: HAER CO-18 Building/structure date... More

Thirty-first Street Overflow Structure, Thirty-first Street, Denver, Denver County, CO

Thirty-first Street Overflow Structure, Thirty-first Street, Denver, D...

Significance: This overflow structure comprised an important part of the sanitary engineering system built in Denver during the last part of the 19th century. Survey number: HAER CO-18 Building/structure date... More

J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...

Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More

DePere Lock & Dam, Fox River at James Street, De Pere, Brown County, WI

DePere Lock & Dam, Fox River at James Street, De Pere, Brown County, W...

Significance: The De Pere Lock and Dam allows passage from Green Bay in Lake Michigan around rapids and into the Lower Fox River. The complex is the first link in a series of locks and dams that allows passage... More

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon County, ID

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...

Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon County, ID

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...

Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon County, ID

Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...

Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississippi River near Houston County, MN, Genoa, Vernon County, WI

Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...

See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More

J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris ...

Significance: The dams within the J. Clark Salyer National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and... More

J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris ...

Significance: The dams within the J. Clark Salyer National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and... More

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 72, Rocky River (historical), Abbeville County, SC

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...

Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 72, Rocky River (historical), Abbeville County, SC

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...

Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 72, Rocky River (historical), Abbeville County, SC

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...

Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 72, Rocky River (historical), Abbeville County, SC

Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...

Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More

Prado Dam, Spillway, Santa Ana River near junction of State Highways 71 & 91, Corona, Riverside County, CA

Prado Dam, Spillway, Santa Ana River near junction of State Highways 7...

Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description

Prado Dam, Spillway, Santa Ana River near junction of State Highways 71 & 91, Corona, Riverside County, CA

Prado Dam, Spillway, Santa Ana River near junction of State Highways 7...

Public domain image related to the State of California, free to use, no copyright restrictions image - Picryl description

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles County, CA

Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...

Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More

Roosevelt Dam, Ariz. - A black and white photo of a waterfall

Roosevelt Dam, Ariz. - A black and white photo of a waterfall

Photograph shows view from elevated vantage point of the Roosevelt Dam and spillways. J212036 U.S. Copyright Office. 1102. Copyright 1916 by Kunselman.

Conchas Dam, a corps of engineers flood prevention project also used for supplying water for irrigation to the Arch Hurley Conservancy District

Conchas Dam, a corps of engineers flood prevention project also used f...

Illustration shows the downstream face and spillway of the newly completed Conchas Dam in New Mexico. Illus. in: Water in New Mexico : a history of its management and use / Ira G. Clark. Albuquerque : Universi... More

Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missoula, Milltown, Missoula County, MT

Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...

Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction

Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missoula, Milltown, Missoula County, MT

Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...

Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction

Champlain Canal, Waterford Locks, U.S. Route 4, Waterford, Saratoga County, NY

Champlain Canal, Waterford Locks, U.S. Route 4, Waterford, Saratoga Co...

Significance: The Champlain Canal was built to link Lake Champlain with the Erie Canal and with the tidewater of the Hudson River. The Canal is presently part of the New York State Barge Canal system, the most... More

Champlain Canal, Waterford Locks, U.S. Route 4, Waterford, Saratoga County, NY

Champlain Canal, Waterford Locks, U.S. Route 4, Waterford, Saratoga Co...

Significance: The Champlain Canal was built to link Lake Champlain with the Erie Canal and with the tidewater of the Hudson River. The Canal is presently part of the New York State Barge Canal system, the most... More

Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washington County, UT

Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...

Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More

Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washington County, UT

Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...

Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More

Skagit Power Development, Gorge High Dam, On Skagit River, 2.9 miles upstream from Newhalem, Newhalem, Whatcom County, WA

Skagit Power Development, Gorge High Dam, On Skagit River, 2.9 miles u...

Unprocessed Field note material exists for this structure: FN-5 Survey number: HAER WA-24-C Building/structure dates: 1961 Initial Construction

Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rockland, La Crosse County, WI

Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rock...

Significance: The Little Kaukauna Lock and Dam Complex allows passage for watercraft around the rapids present in the Lower Fox River at Little Kaukauna. Survey number: HAER WI-89 Building/structure dates: 18... More

Schofield Barracks Military Reservation, Ku Tree Reservoir, Spillway, Kalakoa Stream, East Range, Wahiawa, Honolulu County, HI

Schofield Barracks Military Reservation, Ku Tree Reservoir, Spillway, ...

Significance: The spillway is significant as an element of the Ku Tree Reservoir and as a good example of a spillway constructed for an earth-fill dam in Hawaii in the 1920s. The spillway embodies the distinct... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

American Falls Water, Power & Light Company, Island Power Plant, Snake River, below American Falls Dam, American Falls, Power County, ID

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...

Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...

Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...

Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More

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